May Domestic Swine Disease Monitoring Report Now Available

May 6, 2020 — 

The Swine Health Information Center's (SHIC) May Domestic Swine Disease Monitoring Report is available. Porcine reproductive and respiratory syndrome virus positive cases in April were down in March per the most recent Domestic Swine Disease Monitoring Report (DSDMR) and within the forecasted levels for this time of the year. The DSDMR advisory group pointed out COVID-19-related packing plant shutdowns have led to the retention of animals in the field and caused negative market impact. They also noted this may affect the implementation of health interventions, as well as cause disruptions of pigs and people flows. Altogether, these factors can lead to increased pressure of pathogen infection in the field in the near term. Porcine epidemic diarrhea virus (PEDV) and porcine deltacorona virus (PDCoV) cases were also down in April compared to March. Both were in forecasted levels for this time of year. The overall percentage of Mycoplasma hyopneumoniae positive cases in April was within the forecasted levels, down from March levels.

View the full report dashboards and listed to podcasts in the online portal. No login required.

What is the Swine Disease Reporting System (SDRS)?

SHIC-funded, veterinary diagnostic laboratories (VDLs) collaborative project, with goal to aggregate swine diagnostic data from participating reporting VDLs, and report in an intuitive format (web dashboards), describing dynamics of disease detection by pathogen or disease syndrome over time, specimen, age group, and geographical space. For this report, data is from the Iowa State University VDL and South Dakota State University ADRDL. University of Minnesota VDL and Kansas State University VDL. Specifically, for PRRSV RFLP data, and syndromic information the results are from Iowa State University VDL. For all "2019 predictive graphs," the expected value was calculated using a statistical model that considers the results from three previous years. The intent of the model is not to compare the recent data (2019) to individual weeks of previous years. The intent is to estimate expected levels of percent positive cases based on patterns observed in the past data, and define if observed percentage positive values are above or below the expected based on historic trends.